Improvement in pumps



UNITED STATES PATENT OFFICE.

GEORGE HARRISON LAUB, OF WEST LEBANON, INDIANA.

IMPROVEMENT IN PUMPS.

Specification forming part of Letters Patentl No. 158,287, dated December 29, 1874; application tiled October 24, 1874.

To all whom ttmay concern.-

Be it known that I, GEORGE H. LAUB, of West Lebanon, in the county of Warren and State of Indiana, have invented a new and useful Improvement in Pumps, of which the following is a specification:

In the accompanying drawing, Figure l represents a vertical central section ot' my improved pump. Figs. 2 and 3, respectively, detail a bottom view and a transverse section of the pump-stock cap or cover; Fig. 4, an end'view of the pump-handle and piston-rod connection; and Figs. 5 and 6, respectively, top view and vertical central section oi the bottom-valve arrangement.

Similar letters of reference indicate corresponding parts.

The invention relates to the means whereby the lower valve is detachably connected to the side of the inclosing-cylinders, and the seat for said valve is adapted for ready removal when the sand collected beneath and around it requires to be washed out of the cylinder, as hereinafter described.

In the drawing, A represents the stock or uppermost part of a pump, which is, by preference, made of cast-iron, of round shape at the lower or spout part, and of ilattened shape, with rectangular cross-section, at the upper or handle part. The pump-handle B is fulcrumed to projecting ears a of stock A, for swinging readily therein without being obstructed in its motion, the stock serving, also, for accumulating the water above the spout, so that it may supply the same until the next stroke is completed. The top part of stock A is covered by a detachable spring cap or cover, A, which, on removal, shows the stand of water in the stock, and admits the easy tightening of the connection of handle and piston-rod. The lower flanged part of stock A is tightly and securely fitted by two or more connecting screw-bolts, b, around the recessed shoulder d of the stock-supporting pump -cylinder O. Cylinder O is of sufficient length, according to the depth of the well, and is fitted, by its conically-tapered lower end, tightly into the piston-cylinder D, whose height corresponds to the stroke of the piston. The lower flanged and grooved end of piston-cylinder D is, by means of interposed packing and screwbolt connections, closely attached to the correspondingly ianged and shaped valve-cylinder E, which is seated by a conical bottom extension, e, in the perforated lter or strainer at the bottom of the well. A cylindrical valve-seat, El, is screwed or otherwise secured into the central bottom perforation of the valve-cylinder E, extended to some distance above the bottom, and provided with a top ange, f, for supporting the valve.

The object of raising the valve-seat above the bottom of the cylinder is to form a space around and below the top part of the same, in which the sand and other impurities may settle Without obstructing the regular working of the valve.

rlhe valve E2 is hinged to the projecting bottom ilange g1 of a valve-holder, g, which is provided with a hook-shaped upper end, placed in vertical guide-strips, g2, at the interior of the valve-cylinder, and secured in the required position by a retaining-spring, g3, of the valve-holder g.

-`lhe valve may be readily slid out by taking hold of the hook-shaped valve-holder, and repaired without taking the lower cylinders out of the well.

The piston-rod F is pivoted, by strong riveted side bands and fastening-pin h1, to an eyebolt, h2, at the inner end and lower side of the pump -handle B, swinging readily thereon Without coming in contact with the stock.

The lower end of the pistonerod F is attached to a bail secured to the piston F', which is constructed of an interior wooden part, with top and bottom incasiiug-cups, i', and with a central perforation, having the ordinary valve on the top, while suitable leather packing around the piston gives the required tightness for the working of the piston in its guide-cylinder.

The pump-sections may be readily and conveniently taken to pieces bylifting them in sections from the well, allowing thereby access to all the parts for repairs, and a more substantial construction and quicker setting up.u

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. The combination of the valve-holder g, vated above the bottom of the cylinder, as guide-strips g2, attached to the Wall of the cylshown and described. inder and a retaining-spring g3 as and for the plrpose Specied' 7 GEORGE HARRISON LAUB.

2. The combination of the detachable metal Witnesses:

valve-seat El with a cylinder-section, E, the SAURIN TULLIS, same being arranged with its top rim f ele- HERMON W. TIMMONS. 

